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Junior Fullstack Developer TypeScript, Node.js, API

ATNS · Hà Nội
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Ngành nghề
CNTT - Phần mềm
Kinh nghiệm
Từ 3 năm
Mức lương
Thương lượng
Địa điểm
Not Available, Hà Nội, Hà Nội

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Tổng quan

  • ROLE OVERVIEW
  • We are looking for a proactive, skilled, and detail-oriented Fullstack Developer (Junior) with 1 to 3 years of commercial software engineering experience to expand our Platform Engineering team. In this role, you will design, engineer, and operate edge-native services and enterprise web applications running on the Cloudflare Developer Platform.
  • You will be responsible for orchestrating bidirectional integrations between our high-speed edge web applications, internal enterprise tools, and our central SAP ERP system. You will help replace legacy monolithic middle layers with low-latency, event-driven serverless architectures that guarantee high availability, security, and global performance.
  • Experience Level: Mid-Level (3 – 5 years commercial experience)
  • Location: Hanoi, Vietnam (Hybrid: 4 days office / 1 day remote)
  • Working Hours: 12:00 PM – 9:00 PM, Sunday to Thursday
  • Department: Digital Platform & Cloud Engineering
  • Employment Type: Contract
  • Build, and maintain RESTful and RPC microservices on Cloudflare Workers using TypeScript and Hono, adopting edge-first architectural patterns.
  • Frontend Engineering: Develop scalable, responsive, and data-dense enterprise web portals, operations dashboards, and admin control panels using Cloudflare Pages, React, Next.js / Remix, and Tailwind CSS.
  • SAP & Enterprise Integration: Design, deploy, and monitor robust integration pipelines connecting internal applications to SAP S/4HANA / ECC via OData (v2/v4), REST APIs, RFC/BAPI wrappers, and the SAP Integration Suite.
  • Internal Tooling Ecosystem: Build custom workflow automations, webhooks, and integrations bridging developer tools (GitHub Actions, Jira, Linear) and communication platforms (Slack, Microsoft Teams).
  • Quality Assurance & Observability: Maintain high code test coverage using Vitest and Playwright. Implement edge logging, distributed tracing, and real-time error tracking with Cloudflare Tail Workers and OpenTelemetry.

Yêu cầu

  • Must-have
  • TypeScript & Node.js: Proficiency with modern TypeScript, asynchronous programming, functional programming principles.
  • Frontend Experience: Solid commercial experience building and maintaining complex web frontends using React, client-side state management (e.g., Zustand, TanStack Query), and component libraries.
  • API Design & Integration: Proven track record in designing, documenting (OpenAPI/Swagger), consuming, and securing RESTful APIs, webhooks, and third-party SaaS integrations.
  • Database & ORM Proficiency: Strong practical experience with relational databases (PostgreSQL, SQLite), schema migrations, query performance tuning, and modern ORMs (e.g., Drizzle ORM, Prisma).
  • Nice-to-have
  • Direct production experience using the Cloudflare Developer Platform (Cloudflare Workers, Pages, D1, KV, Queues, Durable Objects, Hyperdrive, Wrangler).
  • Experience with lightweight edge server frameworks (Hono, Elysia).
  • Familiarity with SAP BTP (Business Technology Platform), SAP Cloud Connector, or SAP Integration Suite.
  • Experience with distributed systems challenges: idempotency, eventual consistency, rate limiting, and circuit breaker patterns.
  • Experience setting up End-to-End (E2E) testing with Playwright or Cypress.
  • DevOps & CI/CD: Hands-on experience configuring automated CI/CD pipelines (GitHub Actions), environment secrets, and automated testing suites.
  • Functional programming in Effect-Ts
  • Enterprise & SAP Integration: Hands-on experience or solid working knowledge of enterprise application integration, particularly with SAP (OData v2/v4, REST endpoints, SAP Gateway, or BAPI/RFC) or similar enterprise ERPs.
  • Asynchronous & Event-Driven Processing: Implement resilient background jobs, batch synchronizations, and retry mechanisms using Cloudflare Queues, Cloudflare Workflows, and Scheduled Triggers.
  • CORE TECHNOLOGY STACK
  • Edge Compute & Backend: Cloudflare Workers, Hono, Node.js / TypeScript.
  • Edge Storage & Queues: Cloudflare D1, Workers KV, Cloudflare Queues, R2 Storage, Hyperdrive.
  • Frontend Frameworks: Cloudflare Worker, React, TanstackStart, Tailwind CSS, Sync engine.
  • Enterprise & Internal Systems: SAP S/4HANA / ECC, SAP OData, SAP BTP, Slack API, Jira REST API.
  • Security & Auth: Cloudflare Zero Trust / Access, OAuth 2.0, OIDC, JWT, Web Crypto API.
  • DevOps, Testing & Tooling: Wrangler CLI, Miniflare, Vitest, Playwright, GitHub Actions, Docker.
  • Fullstack, PostgreSql, Database, API, NodeJS, TypeScript

Quyền lợi

  • Technical Autonomy: High degree of technical ownership in designing modern edge-native architectures and retiring legacy middleware.
  • Enterprise-Scale Impact: Build tools directly impacting hundreds of daily internal users and missioncritical enterprise workflows.
  • Professional Growth: Dedicated annual learning stipend for cloud certifications (Cloudflare, AWS, SAP), international tech conferences, and internal tech talks.

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